Description: This function creates a line at the intersection between two selected surfaces.
Usage:
1. DSI prompts the user to choose a surface.
> SELECT THE FIRST SURFACE
2. After selecting the first surface, DSI prompts the user for the second surface.
> SELECT THE SECOND SURFACE
3. After selecting the second surface, DSI automatically creates a line at the intersection of the two surfaces. The newly created line is included in the current part.